All Questions
21,234
questions
2
votes
2
answers
14
views
Are foldable tires less puncture resistant
I like buying stuff on Amazon and most of the tires there are foldable. I bought a GP 5000 foldable tire and kept getting flats maybe 1-2 per month sometimes. I stopped using them and went back to ...
- 1,757
1
vote
0
answers
17
views
How do you stop the rubber shield from wandering unless you lock it behind the shift outer cap w/ tongue, which introduces a compressible sheath?
I installed the two parts
shift outer cap with long tongue, and
rubber shield
as shown below, but I'm not absolutely sure this is right.
If I put the rubber shield (the one on the right in the ...
- 9,596
1
vote
1
answer
13
views
Is this SRAM X7 bent?
Lower jockey wheel seems to not be in line with upper so wondering if if was in an accident or bent somehow. If so, anything likely needed besides a new derailleur?
0
votes
1
answer
25
views
How can I increase the friction between the ferrules and the inline barrel adjuster?
The ferrule caps the cable before insertion into the inline barrel adjuster.
The inline barrel adjuster arrives already with a hint of light grease on its threads. For good measure, I add yet another ...
- 9,596
5
votes
2
answers
276
views
Can you shed some light on this dust-shielding ferrule?
I understand that the two parts at the top of the image are an improved ferrule. They rest against the lowermost cable rest — the one nearest to the rear derailleur.
Can you shed some light on these ...
- 9,596
1
vote
0
answers
29
views
Can't remove bleed screw SRAM shifter
I'm trying to bleed my SRAM Force D2 brakes, but I can't remove the bleed screw underneath the shifter cover:
When I try to remove the torx screw, the round part underneath (with the 111... numbers) ...
- 111
1
vote
1
answer
58
views
Need help finding out the brand
Hi everyone need help identifying the brand this logo represents. Did extensive search with Google and Global Brand Database came up empty and hope someone here recognizes this brand.
This logo is on ...
- 11
2
votes
1
answer
32
views
I need the metal spring clip inside the Shimano grip shifter, but can't find one anywhere?
I've seen that this is a common problem, but I've exhausted all my efforts searching for this clip online. The yellow clip in the picture. Can anyone point me in the right direction?
5
votes
2
answers
484
views
What is the name of the floor pump part that depresses the valve stem?
What is the name of the part in the floor pump chuck that depresses the valve stem?
Is it standard enough that I could buy a replacement?
I mainly use this pump to inflate presta tires. From what I ...
- 253
10
votes
5
answers
1k
views
Left crank arm misaligned on climb
On a climb I started to notice something feeling similar to a slipping chain. A couple minutes later while pedaling standing up, my left crank arm got completely misaligned as you can see in the ...
- 101
6
votes
2
answers
2k
views
What standards did velocipedes have when they were invented?
It seems from the wikipedia page that velocipedes were one DIY that was copied by many others. They say about the first example by Baron Karl von Drais:
This design was welcomed by mechanically ...
- 200
2
votes
1
answer
38
views
14” wheels on a 16” bike for toddlers
I purchased a 16” bike for my 4 year old granddaughter, who currently rides her 14” without training wheels. I wanted to get her the next size up to grow in to. Her toes barely touch the ground on ...
- 21
8
votes
3
answers
911
views
How artificial is the lack of 450%+/50t+ gearing on lesser 1x groups?
ESSA, CUES, Advent, Advent X, Acolyte, Sword, and other sub-12-speed low-end groups are all range-impaired compared to what you can get by spending more. Extend it out to 12-speed and there's Eagle SX,...
- 86.5k
7
votes
1
answer
121
views
Are there published figures on aero loss to tyre tread?
I was working on my hardtail yesterday, and found myself spinning the back wheel on the stand while indexing the gears. I noticed quite a lot of airflow, which was obviously from the the knobbly ...
- 60.8k
1
vote
1
answer
81
views
clink-clink as I pedal
Only happens with any pressure on the pedals.
In normal use it clinks twice per pedaling cycle.
More specifically, it does it any time there is any pressure on the pedals and I suddenly release that ...
- 111